As promised here is the final version:
Download: https://easyrpg.org/downloads/tmp/easyrpg-player-switch.zip
Fixes visual glitches and audio and adds a touch ui that can be toggled with ZL.
Official annoucement follows later but thats basicly it.
It also supports "standalone mode", simply put the game files directly in easyrpg-player folder (or in a renamed folder), then the game starts instead of the game browser (though probably not too useful because the title shown in the Homebrew browser will be the same).